Foam the side door Install the foam in other parts of the case, including the side door. Note the thin strip just below the latch. Remove it so the Sonata's support bar has room. The lowest rectangle stays in place on the Sonata II (it needs to be removed for the older Sonata I).

6

Open the air duct The Sonata II ships with a removable plastic duct that directs airflow from the CPU out the back of the case. The AcoustiPack kit comes with precut foam sections for the duct, but you'll need to disassemble the duct. First, take the cooling duct apart.Steps 7&8